Post-retirement Plan (Tables)

6 Months Ended

Jun. 30, 2016

Pension and Other Postretirement Benefit Expense [Abstract]

Net Periodic Pension Expense

The net periodic benefit credit of this plan consisted of the following components:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
	(In thousands)
Service cost – benefit earned during the period	$	324		$	424		$	648		$	848
Interest cost on projected benefit obligations	197			205			394			410
Amortization of prior service credit	(871		)	(871		)	(1,742		)	(1,742		)
Amortization of net loss	—			46			—			92
Net periodic post-retirement credit	$	(350	)	$	(196	)	$	(700	)	$	(392	)